67718038489 has 16 divisors (see below), whose sum is σ = 70943725440. Its totient is φ = 64516193280.

The previous prime is 67718038469. The next prime is 67718038513. The reversal of 67718038489 is 98483081776.

It is a cyclic number.

It is not a de Polignac number, because 67718038489 - 2²⁷ = 67583820761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67718038469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9261367 + ... + 9268675.

It is an arithmetic number, because the mean of its divisors is an integer number (4433982840).

Almost surely, 2^67718038489 is an apocalyptic number.

It is an amenable number.

67718038489 is a deficient number, since it is larger than the sum of its proper divisors (3225686951).

67718038489 is a wasteful number, since it uses less digits than its factorization.

67718038489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8880.

The product of its (nonzero) digits is 16257024, while the sum is 61.

The spelling of 67718038489 in words is "sixty-seven billion, seven hundred eighteen million, thirty-eight thousand, four hundred eighty-nine".